Forget that noise. 

It can still work in niche situations but I think it is a grind and you gamble time and money. 

Quote from @Steven DeMarco: Quote from @Mike Dymski: Ignore the prior stuff (it's all noise), calculate expected ROE for the upcoming few years (including appreciation and principal paydown), and compare that to alternative investment options and you'll have your answer on whether to hold or reinvest elsewhere.

She said the tenant was basically a perfect tenant for the last 11 years with never a late payment or noise or damage complaint. 

You have noise violations in the lease and hopefully you had something about guests as well. 

I would love to be able to get to the point where I don't have to do the typical 9-5 grind and be more involved in my children's lives.

You should have noise monitoring aka minut and exterior cameras.

Keep grinding.

Noise and smells, hours of operation, and access issues are very common, and many commercial tenants have conflicting needs with residential.

The issue is that after 15 or so years of doing this I would just like to relax a little and retire from the 9 to 5 grind.